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https://www.thefretboard.co.uk/discussion/57776/handsomerik/p1
Yup a total non problem. Just Yamaha behaving like a good Japanese company and being super safe
If I remember correctly the fault related to you turning the amp full up and then removing the speaker cable in flight would cause bad things to happen
It's not a practice I would recommend for ANY amp
Don't talk politics and don't throw stones. Your royal highnesses.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
The THR100D was one of the lightweight amp heads I tried before I got my Victory V40, which seems to be dividing opinion on another thread.
The THR100 got great reviews, but I decided this one wasn't for me. At the time my perception was that, on cleaner settings, it might not be as loud as my Fender Hotrod 40W and not as full sounding. But I didn't use it through the recommended cab. I was using my Marshall 1x12 with a Vintage 30, so perhaps I didn't give it a completely fair chance and maybe I was doing something wrong.
Pete
I play guitar and take photos of stuff. I also like beans on toast.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
My father is a retired mechanical engineer and when I first started playing guitar. He could never understand my fascination with valve amps (pumped down my throat by guitarist mags). He thought surely if you were gigging you'd want something reliable. And as he put it "50's" technology (delicate glass bottles) isn't the way forward.
But then my first valve amp sounded considerably better than the crappy solid state amp I had. But these intrigue me. Definitely going to check one out.
But, I was intrigued first of all by the impedance "selector" and HTF they had done it on a sstate amp? Well at least one trick is to restrict the output power* at 4Ohms to 50watts. I assume the "D" circuit is therefore optimised for 8-16 Ohms power delivery?
*Yes, "power"! If the amp can put a 100watt sine into a load it must of course draw more than 100W from the supply, otherwise Yammies have solved Global Warming! And I thought the "peak/music/total music/peak" power SNAFU was done and dusted LAST century?
But otherwise all props to Yamaha. They seem to have produced a fine amplifier. Half again as expensive as the ID 100 of course but has more/different features.
Yer pays yer money....Hope they are as reliable (or do I?.....)
I appear to have lost my opening sentence...I started off by saying "Hope this does not come across as sour grapes and I have HUGE respect for ICBM's opinions on amplifier performance.
Dave.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Impedance insensitivity appears on a few amps; Lab Gruppen e-series, a coupel of my current employer's amps. I don't know how it's done universally, but the Labs are 4-channel internally, presented as two external channels, and they hint that it's handled by the bridging. Somehow.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
The new prototype Darkglass head has an even newer Class D unit - even the "proper iron" sceptics are reporting it has the proper heft of a Class AB.
I’m so bored I might as well be listening to Pink Floyd
Is there something about a class D that allows the power to be measured in a way that might imply a higher rating. I suppose once one supplier starts, everyone wants to be on a level playing field.
Also, some of the Roland Cube specs suggest an output power that's greater than the input power.
I suppose what matters is whether the amp gives you the sound you want in the situation where you want to use it. So try before you buy. But it's a bit confusing for consumers.
Pete
But I do know that it's physically impossible for an amp to put out more power than it uses, or even the same amount. As far as I know the best efficiency that can be reached with both a switch-mode power supply and a Class D output section is about 90%, and there's always a bit of power used by the preamp too, not normally less than a few watts.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Seriously: If you value it, take/fetch it yourself
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein